ECM, a private equity firm, completed the investment in SIS, environmental technology service provider. Financial terms were not disclosed. “We are proud that we have developed SIS into a leading company in an extremely interesting and increasingly relevant niche for the reduction of emissions from volatile hydrocarbons. In order to fully realize the further growth potential for our solutions, we were looking for a partner who fits our medium-sized identity, but who at the same time has proven that he is successful as 'hidden champions' like SIS on the way to the next development stage can accompany. We look forward to opening a new chapter in the history of SIS together with ECM," Guido Soyk, SIS founder and managing director.